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what did you do to your 944 today

Eldavo said:
Imagine if the bikers all fitted skinny tyres, they'd be unstoppable [:D]

Yes, Good point......... [link=http://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwj-zKTZ673TAhXLshQKHRSIAfUQjRwIBw&url=http%3A%2F%2Fwww.conti-bike.co.uk%2Ftyre-tech-talk%2Fmotorcycle-tyre-pressure%2F&psig=AFQjCNGeFKbDPkDn5mDaOCtcTt8OlYeUvw&ust=1493148976670933]
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[link=https://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwipvsiM8L3TAhUGvhQKHQmDAc8QjRwIBw&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DNBbz6DDKTWA&psig=AFQjCNEBZ8v-z83SHH0w-prADriOVsOFFQ&ust=1493150184033054]
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R

 
blade7 said:
924Srr27l said:
I've found many times on public roads if I'm on a Motorway / Dual then there's no point whatsoever in attempting to out gun a SuperBike, if there are braking zones (Into Roundabouts are my fav) and / or tight corners I'll have a good go and have been Successful many times,

R
I don't agree with you.

This conveniently overlooks the fact that even an average rider on a commuter 600 should already be in front of you into the braking zone/roundabout and blocking you, then leaving you on the exit. Are you driving over the top of them ? More likely your success has been against bikers that didn't realise they were in a race...

Your Kidding ???

I can't remember the last time I saw any Bikers pottering along at a nominal pace, Maybe it's the North Wales area where I live ??

only there's a large amount of Bikers around these parts and I can't think of any time when "the boys" are out and about and just taking a

"ride out for some tea bags!

No quite the reverse, they are all up for it...no question, its easily seen in the body language the amount of throttle / noise and road antics in and out overtaking cars etc ....

Good point / question on the potential blocking scenario's but if it's on a dual carriageway into a roundabout I never sit in the same lane

for the fear of whacking them in the back (And this has been very close many times!) hence I'll always take the empty lane even if it's the left one

to slide down the inside easily. If it's a single track I have to hang back more and give them space as they are so poor on braking it's a given I will hit them!

R

 
interesting when we talk bhp per tonne....I hadn't really looked at this before but if my maths is right.....my car weighs around 1.4 tonne (porsche spec for 86 turbo) If I play conservative and say my car has 400bhp, that gives me more than 280bhp per tonne....well, she is a bit of an animal....:)

Pete

 
PSH said:
interesting when we talk bhp per tonne....I hadn't really looked at this before but if my maths is right.....my car weighs around 1.4 tonne (porsche spec for 86 turbo) If I play conservative and say my car has 400bhp, that gives me more than 280bhp per tonne....well, she is a bit of an animal....:)

Pete

922 BHP per tonne for my bike Pete ;).

 
PSH said:
interesting when we talk bhp per tonne....I hadn't really looked at this before but if my maths is right.....my car weighs around 1.4 tonne (porsche spec for 86 turbo) If I play conservative and say my car has 400bhp, that gives me more than 280bhp per tonne....well, she is a bit of an animal....:)

Pete

248bhp / ton with driver based on (11 stone?) and your 368bhp signature, but you need to get this checked on a RR this year? and the weight on a weighbridge to get a more accurate figure..

Do you have any Traction Control installed, is wheelspin a big issue?

R

 
924Srr27l said:
248bhp / ton with driver based on (11 stone?) and your 368bhp signature, but you need to get this checked on a RR this year? and the weight on a weighbridge to get a more accurate figure..

Do you have any Traction Control installed, is wheelspin a big issue?

R

Not much wheel spin, the weight stops that :ROFLMAO:.

 
368bhp was a long time ago.....I doubt that the weight will be much different from Porsche's figures, I'm not into heavy bass units or such ICE stuff that add unneeded weight....you have to really push these cars with LSD from a standing start to get wheelspin which is something that I've not needed to do, once moving she's a very quick car, no need to thrash something this well sorted to prove a point to any would-be challengers....no traction control, no ABS or anything else that detracts from driving.

Pete

 
PSH said:
368bhp was a long time ago.....I doubt that the weight will be much different from Porsche's figures, I'm not into heavy bass units or such ICE stuff that add unneeded weight....you have to really push these cars with LSD from a standing start to get wheelspin which is something that I've not needed to do, once moving she's a very quick car, no need to thrash something this well sorted to prove a point to any would-be challengers....no traction control, no ABS or anything else that detracts from driving.

Pete

Ah yes you've also got the Lower FDR (3.375) and long gearing which will help resist wheelspin.

Mines very short (3.889) 3000RPM @ 80mph in 5th gear max speed probably 135 ish

I prefer to shift into 2nd asap from a standing start then punch it, I've got a Wavetrac LSD which seems to be working well, no wheelspin just

a bit of squirming as it does it's job..

R

 
blade7 said:
924Srr27l said:
I've found many times on public roads if I'm on a Motorway / Dual then there's no point whatsoever in attempting to out gun a SuperBike, if there are braking zones (Into Roundabouts are my fav) and / or tight corners I'll have a good go and have been Successful many times,

R
I don't agree with you.

This conveniently overlooks the fact that even an average rider on a commuter 600 should already be in front of you into the braking zone/roundabout and blocking you, then leaving you on the exit. Are you driving over the top of them ? More likely your success has been against bikers that didn't realise they were in a race...
Totally agree, a 600cc sports (like the yam r6 as an example) will out perform many a supercar. Brakes on modern bikes are incredibly good and will haul you up in a blink. I did see the f1 against guy martins BMW 1000r and you are not comparing apples with apples. The isle of man spec bm is not vastly different than the bm you can buy in the dealership off the peg. Not even a close comparison, but Coulthard was genuinely surprised how quick the bike was.

You'll be surprised how quick a sports 250 is ridden well through the twisties as well, low weight, relatively low bhp and the ability to use all the power compared to a litre bike that you need to feather the clutch to stop you high/lowsiding.

How many cars can you buy that has around 1000bhp/ton, can do 0-100 mph in around 6 secs, top out at close to 200 mph, return 45 mpg and can be bought for the price of a Skoda fabia? Nothing comes close :)

 
sounds good Roger.....I have no doubt that if I floored it and dropped the clutch, the wheels would spin and probably keep spinning until something went bang....probably a tyre or I lifted off. She has certainly squirmed whilst changing up even though I have still not used full throttle, 84% being the highest logged. She will hold 90mph at 15% all day on a flat road with no boost, when playing with those bikes recently I used just over 50% and had no problem matching their speed. This did involve some boost though, around 1 BAR and each time I caught up with them very quickly, yes they had the initial jump on me but then they would, they are lighter and I was responding to them, not the other way around. The only time when I have matched a bike on equal terms where he pulled up alongside me on the motorway, looked directly at me making his intentions clear and we both opened up at the same time, there was nothing in it and I mean nothing, just a little toeing and throwing as we each changed gear. This started at about 90 and continued until my wife said stop before I kill him, I had hit the limiter in 4th and was still accelerating hard before backing off to give you some idea of the speeds involved, this was with just 368bhp too....

Like you I prefer a higher gear before punching it, with me that's usually 3rd, the 951 comes alive in mid range, even a standard car is extremely quick from 3rd to 4th. One thing I do note is how much more my car comes alive after it's been on the road for say 20 miles or so, this will be due to the heat that's now been generated in the engine giving a far quicker response to the throttle, it can really be felt and was often commentated on during the Porsche cup series when these cars raced and that was with standard engine output.

Having said all this I really do drive like an old man these days...much more docile...:)

Pete

 
Eldavo said:
Haha Pete - 84% of 400 bhp sounds very docile - or not!

shssss...you've caught me out...I'm not actually going any slower, I just kid myself that I am by increasing power output and thus needing less throttle than before....it's all relative you know....:) mind you 84% in top gear ( i haven't been anywhere close) would probably break my speedo...

Pete

 
al said:
Totally agree, a 600cc sports (like the yam r6 as an example) will out perform many a supercar. Brakes on modern bikes are incredibly good and will haul you up in a blink. I did see the f1 against guy martins BMW 1000r and you are not comparing apples with apples. The isle of man spec bm is not vastly different than the bm you can buy in the dealership off the peg. Not even a close comparison, but Coulthard was genuinely surprised how quick the bike was.

You'll be surprised how quick a sports 250 is ridden well through the twisties as well, low weight, relatively low bhp and the ability to use all the power compared to a litre bike that you need to feather the clutch to stop you high/lowsiding.

How many cars can you buy that has around 1000bhp/ton, can do 0-100 mph in around 6 secs, top out at close to 200 mph, return 45 mpg and can be bought for the price of a Skoda fabia? Nothing comes close :)

My Point in fast bikes on public roads are not as good at cornering or Braking as some of them think.

This is something I've found out and experienced over 30 years driving car's and riding Motorcycles and with lots of practice & test sessions..

Many variables can be looked at and compared, I wouldn't be surprised at all how agile a 250 can be, this example can also be used on 4wheels:

A Kart fitted with a R1 600cc Engine which has more power than a 125cc 2 stoke Kart but laps a Track slower.. Many a time a smaller power car or bike is faster than one with more power and the reasons can be a multitude, dependant on weight, straight line, corners or both etc..etc..

I'm sure Modern Motorcycle Brakes have progressed in time as have car's but technically and in practice Motorcycles cannot brake as well as 4 wheeled machines, this I've seen umpteen times on the road and for me it's their biggest weakness. A bikes biggest advantage is their acceleration and that they can and do often slip through and past other traffic because they are very narrow (even if it does mean hitting cats eyes)

Many times I've been scuppered in a Fun session because my car won't go through the middle of 2 car's ! (One oncoming) this is a big advantage on the roads for a car where a bike can just fly in and out of traffic and almost go where they want. But on a racetrack this trick doesn't work and I think the best combination of comparing 2 and 4 wheels is to look at the fastest of each catorgary.

Moto GP 260bhp ? and 225Kg? (with rider) V Formula One 950bhp and 722kg (With driver), the bikes's not even remotely close like 5, 10 or even 15 seconds slower per lap but half a Minute round the Full Silverstone Track! Where does it lose out ? the twisties and braking..

R

 
Back on thread...........

Took off my (13kg) Bosch Battery that's been installed over winter, and fitted back the (3kg) Lithiumax

[link=http://924srr27l.co.uk/wp-content/uploads/2015/05/wheels-66731739-Medium.jpg]
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R

 
924Srr27l said:
I think the best combination of comparing 2 and 4 wheels is to look at the fastest of each catorgary.

R

I don't agree with you.

Back in the real world where everyone on here drives or rides....There's several videos on youtube, filmed on tracks featuring road bikes and road hyper cars that anyone can buy. Quite often the bike can lap quicker...Having said that the older I get the faster I was, and my brain is probably slightly bigger than my balls now [:D], so I'd prefer go around somewhere like the Nurburgring on 4 wheels rather than 2.

 
An F1 car with all its aero is a complete anathema when compared to a road going performance car. A MotoGP bike isn't that different at all to a road going high performance superbike.

You need to compare like with like (and also drop the grocer's apostrophe, this is PCGB you know)

 
Not so much what I did, but what is in the pipeline....

I've been busy buying bits and pieces over the last few weeks and the current list of jobs in the pipeline are:

Refit the instrument cluster after replacing the odometer gears (fiddly job, but hopefully worthwhile).

Fit 'only944' shift linkage arm, shifter rod and short shift modification.

Install 'Rayne Automotive' lighting harness.

Refit hardpipe ready for the VEMS ECU kit which will be arriving shortly. (modified with AIT bung)

Take the car to have a new 3" exhaust system fitted including the 02 bung for the VEMS. (turbo downpipe to the current 3" backbox)

Install new Bosch 044 fuel pump, replace tank strainer and filter.

Install LR Silicone hose kit (in blue, after seeing PSH's ;-))

As you can see, I'm in full tinkering mode....

Fit the VEMS when it arrives...

Also need to sort out the possible oil weep from the gearbox cooler (as per the other post)...

And I'm still waiting for that quote from 'the Restoration man'....come on Nash...

 
Phil - send me some pics of the hardpipe with the bung installed please? I could get this done in advance too if I knew the size of the bung.

 

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